Vacuum-bottle heater



Patented May 12, 1925.

UNITED STATES WALTER WAGNER, or GHICAGQ'ILLINQOIS.

VACUUM-BOTTLE HEATER.

Application filed October 5, 1922. Serial No'. 592,664.

To all whom it may concern:

Be it known that I, WALTER l/VAGNER, a citizen of Poland, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Vacuum-Bottle Heaters, of which the following is a specification.

In my pending application filed March 23, 1922, bearing Serial No. 546,041 I have disclosed a vacuum bottle of the all metal type, which bottle consists in brief of a double walled receptacle having a space therebetween for receiving a suitable filling, this space. being evacuated in a manner clearly and concisely set forth in a pending application filed by me of even date herewith. In this pending application, which is upon the method of manufacturing vacuum bottles of the type disclosed in my first mentioned application, one stage of the process consists in subjecting the partially completed bottle to a high degree of heat preparatory to the subjecting of the bottle to the evacuation stage.

I have found that in the manufacture of all metal vacuum bottles, it is almost an im possibility to properly produce a true vacuum between adjacent walls of the bottle while the same is in a cold state. This fact being due, I believe, to the presence of moisture and gases in the pores of the metal. I have further discovered that by subjecting the walls of the bottle to a highdegree of heat, preparatory to the evacuation process, the pores of the metal will be entirely relieved of any moisture and gases, it being understood that the bottle is to be subjected to the evacuation process while in its heated state, at which time I have absolutely discovered that a true vacuum is resultant between the spaced walls of the receptacle.

From the above it will be readily apparent that the primary object of the present invention is the provision of a heater for subjecting partially completed vacuum bottles to a high degree of heat.

It is a further object of the invention to provide a receptacle heater, which is comparatively simple in construction and one that will readilyreceive and support thereina vacuum bottle of the type disclosed in my pending application. It is, of course, to be understood that my device may be constructed to receive receptacles of a type other than that shown by me without depresent invention.

With the above and other objects in view, the invention consistsof the novel form, combination and arrangement of parts here; inaftermore "fully described, shown in the accompanying drawing and claimed.

parting from the spirit and scope of the.

In the drawing, wherein like reference characters designate corresponding, parts throughout, I

The figure is a vertical cross sectional view of av heater constructed in accordance with the present invention showing a vacuum bottle supported therein in its partially completed state, the walls of the bottle adapted to be heated to a high degree oftempera ture preparatory to the evacuation process.

In the drawing, I have disclosed a partially completed vacuum bottle designated in general by the 'numeral 1 and consisting in brief of an innerreceptacle 2 and an outer receptacle 8. As shown, each of these recept-acles is made up of upperand lower sections, the meeting edges 2 and3 respectively being suitably joined together in. a manner disclosed in mycopending application filed on even date herewith. The bottle shown in the figure has a neck portion 4 formedthereon, and this neck portion is so constructed as to'ha e: an annular shoul-' der 5 slightly inwardly of the outer end thereof. j w

My heater. includes a rigid support 6 which is of substantially U-shape in cross section, which supporto has formed upon the upperwall thereof a vertically disposed housing 7 of any desirable. configuration being open at its top for permitting entrance of the vacuum; bottle therein. Upon the interior, of the housing 7 there is formed or otherwise suitably secured a radially extending skeleton supportingshelf 8, which supporting shelf is provided with a central enlarged opening for allowing the bottle 1 to pass therethrough, the meeting edges 3 of the sections forming the outer wall 3 of.

the bottle engaging upon the marginal edges of this opening for conveniently supporting the bottle within the housing 7 The bot tom wall 7 of the housing is provided with 5 a central opening 9 and surrounding the edges of this opening andextending vertically therefrom is a supporting collar 10,

the upper edge of-which is adapted to engage the shouldered portion 5 of the neck 4 of the bottle for additionally supporting the bottlel within thehousing 7 A flange 10 formed within the collar 10 provides an additional'support for the bottle.

Within the housing 10 and slightly beneath the shelf support 8' is an annular shaped hollow burner member 1 1 suitably perforated as at 12, which burner entirely surrounds the bottle 1 within the-housing. The burner 11 is provided with an outlet nip-P fo.remmun .ca n h a fu l f let pipe 14. I Y I Vlfithin; the support 6 and extendingfverti- 'cally, therein are other; burner pipes 15. whichv extend upwardly through suitable apertures. formed ,in the bottomwall 7" of the housing g7whereby 'their outlet ends will be,.positioned withinthis housing for permittingthe. v flame;- therefrom to. impinge against the adjacent side walls of the-bottle 1'. These vertically disposed burner pipes are I of any desired; form and have communication as at 15.with= fuel ,inlet pipes16.

It I will, be readily understood-,Mthat a :bottle, l as shown in, the drawinghwhich'is supported-within the hoirsing 7 is. so-positioned withprelatio'n:to-the burner elements ll and .15 as to havethe walls of this bottle heated to l the -desired degree of .heat, atwhich time any {moistureorgases-held in the pores-of the metal forming the bottle will be suitably carriedoif, it being further noted that any moistureor gases which form. upon the in ner.-.face of the inner receptacle '21-will-by -:.gravity-,fiow.down and out through the opening 9 inthe bottom wall 7.. of the housing? and any gases: or -moisturethat form between the inner and/outer receptacles 2 and z 3 respectively will consequently be drawn oflzinthe evacuation process fully described in my copending. application.

What I claim as new is 1.jIn;a heater-for vacuum bottles of th type, including a body portion having'a central; annular, head or flange projecting therefrom and having a neck portionwith a shoulder formed thereon inwardly of'the;

outer edge thereof, a housing, means within saidfhousing-for engaging. said annular, 'beador'flange portion of the bottle andithe shoulder portionofthe vneck :thereof for supporting the .bottle in an inverted. position within.theJhOusing, and burner elements within the housingsupported adja cent the walls thereof.

2. Ina heater chamberfor vacuum bottles, a housingincluding a bottom wall, a supporting collar projecting upwardly therefrom, and a flange formed 'withinsaid supporting collar;

3. In a heater for vacuum bottles a flange formed within said collar and bunri housing.

vwithin the housing,

- houslug-including a bottom wall, a supporting collar pro ectlng upwardly .therefrom, a 1

ner elements associated with saidv housing.

. 4. In: a heaterv chamber for vacuum bottles, a housing. comprising bottom and side walls, and means associated with each of said walls for supporting a bottle within saidhousing. l

In aheater for vacuum bottles of the type including a body portion having a central annular. bead projecting therefrom, a housing, and means within said housing for engaging'said bead for supporting the bottle. in an invertedf position within said 6. In a heater for vacuum bottlesof the type having a neck portion with a shoulder: formedithereon, a housing including a bottom wall, and-means withinsaidihousing for engaging said shoulder portion for sup porting the bottlein an inverted position said means I including a collar formed in-said bottom wall of the housing. I I r 7. In a heaterfor vacuum bottles a-housing-having a side wall, ashelfsupport car'- ried by said wall for holding the bottle in an invertedposition, and a burner element positionedad-jacent saidside wall 1 J 8. In a heater for vacuum'bottlesya hous ing including a sidewall, and a burnerof an annular and: hollow construction'within said housing adapted to entirely surround a bottle positioned within said housing, said burner being mounted upon'said side wallr 9. In a heater for vacuum bottles, a housin adapted for receiving 'a bottle-and' hav ing' a side wall, a: burner of annulajr con-= struction mounted upon said side wall andv provided with perforations for the purposes setforth.

' 10. In a heater for vacuum bottles; a housing adaptedfor receiving .a bottle and comprising a bottom wall and a side wall, means associated with said'bottom wa-llpro viding an-upright support for the-bottle,

and'means associated-With said side wall,

type including a body portion having a central annular bead projecting therefrom,

a housing, and an annular shelf therewithin 1 for engaging said bead for laterallysup= porting the bottle in an 1 within the housing.-

12. In a heater for vacuum 'bottle's','; a

nverted position housing including :a side and bottom wallsyr and burner associatedwith= each-of said walls. 1

13; In a heater for vacuumwbottles, a a cylindrical housing having an. open-fend;

and'buiner elements associated with al-l of the walls of said housing.

In testimonyv whereof I *afiix signature WALTER. AGNERL- 

